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  1. E

    PERMUTATION COMBINATION-HELP needeed

    Q.a wrd is made using 7 letters of the word EXAMPLE. hw many difrnt wrds r possible if the two letters E are NOT next to each other?? Q.A coin is tossed ten times. (i) how many different sequences of heads and tails are possible? (ii)how many different sequences containing six heads and four...
  2. E

    WAter potential-solute AND pressure potential..STUK

    CAN U PLZ EXPLAIN ALL THESE IN DETAIL...especially with particular reference to plant cells..as in nov 2003 P1 q7. WHEN A PLANT CELL IS PLACED IN DISTILLED WATER WAT CHANGES OCCUR to its solute, pressure and water potential....and wat do u mean by plant tissue having same solute potential as a...
  3. E

    biology paper 1z...confusion

    Apart 4m pastpapers wat else shud i do?? CAN some1 explain in detail tidal vol and vital capacity and how to do related past paper que... i cant do any for instance nov 2004 pi q32
  4. E

    biology paper 1z...confusion

    Apart 4m pastpapers wat else shud i do?? CAN some1 explain in detail tidal vol and vital capacity and how to do related past paper que... i cant do any for instance nov 2004 pi q32
  5. E

    NEED HELP...

    I cant do nov 09 math p62 q1 part(ii)... does sum1 knw hw to do it??
  6. E

    AS practical exams

    Can anybudy guide me as to hw can i prepare 4 my as bio and chem practical examinations??? im stuk..PLZZ HELP :cry:
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